[Reproducible-builds] Bug#792976: logapp: please make the build reproducible

[Maria Valentina Marin]

Source: logapp
Version: 0.15-1
Severity: wishlist
Tags: patch
User: reproducible-builds at lists.alioth.debian.org
Usertags: timestamps
X-Debbugs-Cc: reproducible-builds at lists.alioth.debian.org

Hi!

While working on the “reproducible builds” effort [1], we have noticed
that logapp could not be built reproducibly.

The attached patch sets the mtimes of all files which are modified
during the built to the date of the last changelog entry in order to
produce files with reproducible metadata.

Cheers,
akira

[1]: https://wiki.debian.org/ReproducibleBuilds


-------------- next part --------------
diff -u logapp-0.15/debian/rules logapp-0.15/debian/rules
--- logapp-0.15/debian/rules
+++ logapp-0.15/debian/rules
@@ -34,6 +34,8 @@
 INSTALL_PROGRAM += -s
 endif
 
+BUILD_DATE := $(shell dpkg-parsechangelog --show-field Date)
+
 build: build-stamp
 
 build-stamp: patch
@@ -82,6 +84,8 @@
 	$(INSTALL_DIR) $(PACKAGE_DIR)/DEBIAN
 	cd $(PACKAGE_DIR) && find * -type f ! -regex '^DEBIAN/.*' -print0 | xargs -r0 md5sum > DEBIAN/md5sums
 	dpkg-gencontrol -p$(PACKAGE_NAME) -P$(PACKAGE_DIR)
+	find $(PACKAGE_DIR) -newermt '$(BUILD_DATE)' -print0 | \
+		xargs -0r touch --no-dereference --date='$(BUILD_DATE)'
 	dpkg-deb --build $(PACKAGE_DIR) ..
 
 binary: binary-indep binary-arch
diff -u logapp-0.15/debian/changelog logapp-0.15/debian/changelog
--- logapp-0.15/debian/changelog
+++ logapp-0.15/debian/changelog
@@ -1,3 +1,10 @@
+logapp (0.15-1.1) UNRELEASED; urgency=medium
+
+  * Non-maintainer upload.
+  * Fix mtimes before building binary packages to produce reproducible output 
+
+ -- akira <marivalenm at gmail.com>  Tue, 14 Jul 2015 21:36:22 +0200
+
 logapp (0.15-1) unstable; urgency=low
 
   * New upstream release